We can derive a different governing equation for the missile in “Seek-Lock-Strike!“.
Fig. 1
Looking from a different viewpoint (Fig. 1), we see
Solving (1) for ,
We also have
Equate (1) and (2) gives
The governing equation emerges after differentiate (4) with respect to
We let so and express (5) as
where
Fig. 2
Using Omega CAS Explorer, we compute the missile’s striking time (see Fig. 3). It agrees with the result obtained previously.
Fig. 3
Exercise-1 Obtain the missile’s trajectory from (*).